Design Patterns for Building Network Agnostic Android Apps

Building apps are easy. There are so many samples & guides out there. But building them agnostic to network conditions is not easy. In fact, it is so hard when done well gets amazing returns. This talk aims to help with solid design patterns which can be applied to many usecases in developing fully functional android apps.

Transcript

1. Design Patterns for Building Network Agnostic Android Apps
5. “India has a fastest & widest network which works perfectly from Shimla to Tamilnadu ”
10. LTE vs 2G
11. LTE vs 2G
12. What is a network agnostic mobile app?
17. Cacheable content with Time-To-Live
18. Server adds TTL info in all responses Cacheable content with Time-To-Live
19. Server adds TTL info in all responses Client uses cache data if valid Cacheable content with Time-To-Live
20. Server adds TTL info in all responses Client uses cache data if valid Can extend to ignore network response Cacheable content with Time-To-Live
21. Cacheable content with Time-To-Live
22. Cacheable content with Time-To-Live
23. Content Versions, 304 responses
24. Fetch only if content changed Content Versions, 304 responses
25. Fetch only if content changed Useful for categories, navigations, etc., Content Versions, 304 responses
26. Fetch only if content changed Useful for categories, navigations, etc., Useful for rarely changing content Content Versions, 304 responses
27. Content Versions, 304 responses
28. Content Versions, 304 responses
29. Prefetching, Updating in background
30. Progressive Web Apps follow this approach Prefetching, Updating in background
31. Progressive Web Apps follow this approach Can download much in WiFi and avoid data Prefetching, Updating in background
32. Progressive Web Apps follow this approach Can download much in WiFi and avoid data Can provide offline experience Prefetching, Updating in background
33. Prefetching, Updating in background
34. Prefetching, Updating in background
35. Deferred actions and lazy reports
36. Most of the actions are not time critical Deferred actions and lazy reports
37. Most of the actions are not time critical Responses for few actions are not critical Deferred actions and lazy reports
38. Most of the actions are not time critical Responses for few actions are not critical Seamless experience to users Deferred actions and lazy reports
39. Deferred actions and lazy reports
40. Deferred actions and lazy reports
41. Client side feed generation
42. Client side feed generation
43. Client side feed generation
44. Client side feed generation
45. Client side feed generation
46. Client side feed generation
47. SMS / USSD based transactions
48. SMS / USSD based transactions
49. SMS / USSD based transactions
50. Prefetch & Pull notifications
51. Periodic fetch of notifications Prefetching & pull notifications
52. Periodic fetch of notifications Includes timestamp for showing and expiry Prefetching & pull notifications
53. Periodic fetch of notifications Includes timestamp for showing and expiry Reduces dependency on unreliable Push infra Prefetching & pull notifications
54. Prefetching & pull notifications
55. Target ready notifications, messages
56. Load resources for landing page before notify Target ready notifications, messages
57. Load resources for landing page before notify Enables immediate landing to target page Target ready notifications, messages
58. Load resources for landing page before notify Enables immediate landing to target page Improved experience in slow networks Target ready notifications, messages
59. Target ready notifications, messages
60. t.uber.com/indiaengcareers t.uber.com/blr_site
61. Thanks! Arun Babu A S P Senior Android Engineer @ Uber https://www.linkedin.com/in/arunasp/
62. Credits Presentation template by slidescarnival.com